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Coarticulation as synchronised CV co-onset – Parallel evidence from articulation and acoustics

Liu, Z; Xu, Y; Hsieh, F-F; (2022) Coarticulation as synchronised CV co-onset – Parallel evidence from articulation and acoustics. Journal of Phonetics , 90 , Article 101116. 10.1016/j.wocn.2021.101116. Green open access

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Abstract

This study tested the hypothesis that consonant and vowel are synchronised at the syllable onset, and that such synchronised co-onset is the essence of coarticulation. Articulatory data were collected for Mandarin Chinese, using Electromagnetic Articulography (EMA), and acoustic data were collected simultaneously. As a departure from conventional approaches, a minimal triplet paradigm was applied, in which divergence points between movement trajectories in contrastive pairs were used to determine segmental onsets. Triplets of disyllabic words consisting of two matching contrastive pairs in a C1V1#C2V2 structure were used, whereby the consonant pair differed only in C2 and the vowel pair differed only in V2 (the numerical indices indicate syllable position). Both articulatory and acoustical results showed that the articulation of vowels and consonants started at about the same time, thus supporting the CV synchrony hypothesis. The realisation of CV synchronisation was dimension specific, however. For any particular articulator, only the dimensions free of consonantal requirement started their movements toward the vowel from the syllable onset, while the rest of the dimensions moved toward successive consonantal and vocalic targets. The finding of CV co-onset increases the amount of temporal overlap between C and V relative to the widely assumed CV asynchrony. The evidence of dimension-specific sequential articulation sheds further light on coarticulation by offering a timing-based explanation for the well-known phenomenon of coarticulation resistance.

Type: Article
Title: Coarticulation as synchronised CV co-onset – Parallel evidence from articulation and acoustics
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.wocn.2021.101116
Publisher version: https://doi.org/10.1016/j.wocn.2021.101116
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Coarticulation, CV synchrony, EMA, GAMMs, coarticulation resistance
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Speech, Hearing and Phonetic Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10140187
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